JPS63236551A - Crushing grinder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention removes sharp edges by polishing crushed rock, crushed sand, crushed stone of river gravel, slag (mine slag), etc. cut out from a mountain. This invention relates to a crushing and polishing device for obtaining high-quality sand and gravel by removing deposited mud.

[Conventional technology]

As a prior art, for example, the one described in Japanese Patent Publication No. 47-3420 is known. This consists of a constant-speed rotating drum that has opposing @walls and is arranged in the horizontal direction, a material feeding device that feeds the material into one end of the drum in a substantially axial direction, and a material that is crushed from the drum. and a member having an outer circumferential surface portion made of a durable elastic material and rotated around an axis substantially coaxial with the rotational axis of the drum, the member being pivotally supported in the drum and restrained. a rotary impulse member to be rotated; and a rotary impulse member spaced apart around the inner periphery of the drum at the outer periphery of the impulse member to engage and raise the material introduced into the lower periphery of the drum and to raise the upper part of the drum. A crusher comprising a material lifting device that raises the material toward the peripheral edge and then drops the raised material onto the impulse member by gravity, the rotating drum and the rotational impulse member having a substantially concentric relationship. As another conventional example in which both wheels rotate in the same direction, there is known a stone crushing and polishing device described in Japanese Patent Application Laid-Open No. 0586753.

This is to remove soil clods and corners of crushed stones that are attached to crushed stones by polishing the crushed stones and other crushed stones. It is equipped with a rotor with impact blades that rotates in the opposite direction to the drum, and the center axis of the impact blade (J) rotor is coaxial with the center axis of the rotating drum. The crushed stones are scraped up by the impact blades of the rotor and collided with the upper inner wall of the drum, which is rotating in the opposite direction to the rotor, and the crushed stones flying inside the drum come into contact with each other and are crushed into corners or crushed stones. (It is said that the clods on the ground are removed.

[Problem to be solved]

The method described in Japanese Patent Publication No. 47-3420 is good for crushing the material into small particles, but when the material is hard crushed stone for concrete, it is difficult to crush the corners of the crushed stone with a rotary impulse member such as a rubber paddle. Removal was impossible, and it was impossible to obtain rounded sand or gravel.

Furthermore, the one described in Japanese Patent Application Laid-open No. 50-86753,
Since the crushed stones are sent flying around inside the rotating drum, they may collide with the upper inner wall of the drum or collide violently with each other.
Before the corners and clods can be removed, the crushed stone itself is crushed and divided, resulting in extremely angular pieces, and furthermore, it takes a lot of time to remove the divided corners of the crushed stone. there were.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a crushing and polishing device that can effectively remove corners and clods and can be designed compactly without increasing the size of the entire device.

[Means for solving problems]

In order to achieve the above-mentioned object, the first invention removably attaches a single stage or multiple stages of receiving plates vertically within a substantially hollow cylindrical drum, and the receiving plates extend radially in the radial direction. It is composed of a large number of arranged bars and gaps formed between each bar, and the whole is formed into a donut shape.A rotor that rotates independently is provided at the center of the drum and the receiving plate, and the rotor is received by the rotor. One or more rotating blades are installed to work together with the plate to crush and polish materials such as crushed sand, crushed stones, gravel, etc., and a distribution chute is installed on the rotating rotor to feed materials between these rotating blades, and a drum is installed. It is configured to mainly crush and polish the material supplied from above and dropped between the rotating blades by a sorting chute using rotating blades rotated by the rotation of a rotating rotor and a receiving plate located below the rotating blades. .

The second invention is a drum having a substantially hollow cylindrical shape, in which a plurality of receiving plates are removably installed in the vertical direction. It is constructed by forming the whole into a donut shape with gaps formed between the bars,
A rotating rotor that rotates independently is provided at the center of the drum and the receiving plate, and the rotating rotor is equipped with one or more rotating blades for crushing and polishing materials such as crushed sand, crushed stone, gravel, etc. in cooperation with the receiving plate. A sorting chute is installed on the rotating rotor to feed the material between these rotating blades. The material is supplied and dropped between the rotating blades in a sorting chute, and is mainly crushed and polished using rotating blades rotated by the rotation of a rotary rotor and a receiving plate located below the rotating blades.

[Effect]

When material, such as crushed sand, is introduced from above the drum and the rotating rotor is rotated to rotate the rotating blades, the crushed sand remaining on the receiving plate is mainly crushed and polished by the rotating blades and the rods that make up the receiving plate. The crushed sand has its corners removed and falls through the gaps in the receiving plate as high-quality sand. In the case where a plurality of rotating blades and receiving plates are provided, the crushed sand is sequentially polished on the receiving plates provided in the plurality of stages, and is discharged from the drum as high-quality sand.

Furthermore, due to the presence of the sorting chute, the material always falls between the rotating blades instead of falling onto the rotating blades, and in the case of a collection chute, the material pushed outward as the rotating blades rotate. In the next stage, the entire lower surface of the rotary blade is again efficiently crushed and polished.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a receiving plate 2 is removably attached to a substantially hollow cylindrical drum 1 in multiple stages in the vertical direction. In the illustrated embodiment, the receiving plates 2 are provided in two stages. A rotating rotor 3 that rotates independently is provided at the center of the drum 1 and the receiving plate 2, and the rotating rotor 3 and the rotating rotor 3 are equipped with rotating blades that work together with the receiving plate 2 to crush and polish materials such as crushed sand and crushed stone. 4
There is a hopper 5 at the upper end of the drum 1, into which material is input.Also, the drum 1 is attached to the main body casing 6. −
It's J-ke. This main body casing 6 is supported by struts 7. The rotating rotor 3 is mounted on the rotating shaft 8.]
A driven wheel 9 is fixed to the base end of the rotating shaft 8. This driven wheel 9 is connected by a belt 12 to a driving wheel 11 fixed to the output shaft of a motor 10. motor 10
By operating the driven wheel 9 and rotating the driving wheel 11, the driven wheel 9
and rotate the rotating shaft 8 by the rotation of the driven wheel 9,
The rotation of the rotating shaft 8 causes the rotating rotor 3 to rotate. Furthermore, when the rotating rotor 3 rotates, the rotating blades 4 attached thereto also rotate together.

A sorting chute 13 for feeding the material between the rotating blades 4 is arranged so as to rotate together with the rotating rotor 3. Details of this distribution chute 13 will be described later. Further, a collecting chute 14 is provided on the lower surface of the upper receiving plate 2 to guide the material to a sorting chute 13 at the next stage.

Attaching the rotating blades 4 to the rotating rotor 3 (=J) fixes the rotor 15 to the rotating rotor 3, and attaches one or more rotating blades 4 to the rotor I5. It is attached to a support stand 16, and this support stand 16 is attached to a bearing 17 provided on the inner peripheral surface of the drum 1 and the rotating rotor 3,
The rotating rotor 3 is configured to remain immovable even when it rotates. The lower receiving plate 2 is also attached to a similar support stand 16 (=J), and this support plate 16 is attached to the inner peripheral surface of the drum I (=J).
i2 is composed of a main body part 2A which is inclined so that the height gradually increases as it goes outward, and a vertical pillar part 2B which has the outer tip of this main body part 2A raised upwards. The tip of the receiving plate 2 rises up to form a standing wall 4A so as to follow the shape of the receiving plate 2 configured in this manner.

A prevention plate 18 is provided below the upper support stand 16 to prevent the material from scattering. Also, drum 1
A bottom plate 19 is provided on the inner lower surface, and a discharge chute 20 is formed following this bottom plate 19. Furthermore, the hopper 5 is formed on the upper M21 that covers the upper end opening of the drum 1, and the lower surface of the upper lid 21 is provided with a prevention plate 1 for preventing the material from scattering, similar to the one described above.

The details of the sorting chute 13 are as shown in Fig. 2.
A J-shaped ring body 22 is attached to the rotor 15 so as to rotate together with the rotor 15.
5, and an intake port 24 through which the material scraped by the scraping plate 23 falls between the rotating blades 4. This distribution chute 13 also rotates together with the rotating blade 4 as the rotating rotor 3 rotates. The arrow in FIG. 2 indicates the direction of rotation.

As shown in the third section, the receiving plate 2 has a large number of rods arranged radially in the radial direction and a gap 2C formed between each rod, and is formed into a donut shape as a whole. The portion of the bar that is inclined so as to gradually become higher toward the outside is the main body portion 2A, and the portion that stands up by bending the outer tip of the main body portion 2 becomes the upright column portion 2B.

In the embodiment described above, both the sorting chute 13 and the collecting chute 14 are used, but the intended purpose of the invention can be achieved even without providing the collecting chute 14.

Further, in the type without the collection chute 14, even if the rotary blade 4 and the receiving plate 2 are configured as one set, that is, one stage, it may be sufficiently practical depending on the type of material to be processed.

Furthermore, in the embodiment described above, the tip of the rotary blade 4 is raised to form the standing wall-4A, and the tip of the bar forming the receiving plate 2 is also raised to form the standing column part 2B.
These do not necessarily need to be formed.

〔effect〕

As explained above, according to the first invention, a single stage or multiple stages of receiving plates are removably attached to the drum in the vertical direction, and the receiving plates are composed of a large number of rods arranged radially in the radial direction. It has a donut-shaped structure with gaps formed between the drum and each bar, and a rotating rotor that rotates independently is provided at the center of the drum and the receiving plate, and the rotating rotor cooperates with the receiving plate. One or more rotating blades are used to crush and polish materials such as crushed sand, crushed stones, gravel, etc. The materials supplied from the rotor and dropped between the rotating blades in the sorting chute are mainly crushed and polished by the rotating blades rotated by the rotation of the rotor and the receiving plate located below the rotating blades, so corners and clods are effectively removed. This allows the entire device to be designed compactly without increasing its size.Furthermore, in the first invention, the tip of the rotating blade rises to form a standing wall and also constitutes a receiving plate. If the tip of the bar also rises to form a vertical column, the material that attempts to escape outward due to the rotation of the rotary blades can be crushed and polished between the vertical wall and the vertical column, resulting in even more crushing efficiency. In particular, in the first invention, the material input from the hopper does not fall above the rotating blades, but falls between the rotating blades, so the material is efficiently transferred to the rotating blades. Crushing and polishing will occur between the lower surface and the upper surface of the receiving plate.

According to the second invention, not only a sorting chute but also a collecting chute is used (because it is a NJ type, the material that has been processed and fallen in the upper stage is collected again at the center of rotation and is allowed to fall between the rotating blades by the sorting chute). Therefore, extremely efficient crushing can be performed in multiple stages.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a preferred embodiment of the invention, FIG. 2 is a horizontal sectional view showing details of the receiving plate, rotating blades, and distribution chute, and FIG. 3 is a plan view showing the receiving plate. . ■... Drum, 2... Receiving plate, 2A... Main body, 2B... Standing column, 2C... Gap, 3... Rotating rotor, 4... Rotating blade, 13...・Distribution shoot, 14...Collection shoot.

Claims (1)

[Scope of Claims] 1. A single stage or multiple stages of receiving plates are removably attached in the vertical direction within a substantially hollow cylindrical drum, and the receiving plates are made up of a number of rods arranged radially in the radial direction. The drum has a donut-shaped structure, with gaps formed between the rods, and a rotating rotor that rotates independently is provided at the center of the drum and the receiving plate. One or more rotating blades are installed for crushing and polishing materials such as crushed sand, crushed stone, gravel, etc., and a distribution chute for feeding materials between these rotating blades is installed on the rotating rotor, and the distribution chute is supplied from above the drum. This crushing and polishing device is characterized in that the material dropped between the rotating blades is mainly crushed and polished using rotating blades rotated by the rotation of a rotating rotor and a receiving plate located below the rotating blades. 2. The crushing and polishing apparatus according to claim 1, wherein the tip of the rotary blade rises to form a standing wall, and the tip of the rod constituting the receiving plate also rises to form a standing column. 3. Multiple stages of receiving plates are removably installed in the vertical direction inside the approximately hollow cylindrical drum, and the receiving plates are formed between a large number of rods arranged radially in the radial direction and between each rod. It is constructed in a donut shape with gaps, and a rotating rotor that rotates independently is installed at the center of the drum and receiving plate, and the rotating rotor works with the receiving plate to collect materials such as crushed sand, crushed stone, gravel, etc. One or more rotating blades for crushing and polishing are installed, a sorting chute for feeding material between these rotating blades is attached to the rotating rotor, and a collection mechanism is installed on the underside of the upper receiving plate to guide the material to the next sorting chute. A chute is provided, and the material supplied from above the drum and dropped between the rotating blades by the sorting chute is mainly crushed and polished by the rotating blades rotated by the rotation of the rotating rotor and the receiving plate located below the rotating blades. A crushing and polishing device characterized by the following configuration. 4. The crushing and polishing device according to claim 3, wherein the tip of the rotary blade rises to form a standing wall, and the tip of the rod constituting the receiving plate also rises to form a standing column.